please help with my project.

Projects General Guidance
1

hello. i have been trying to find a solution for this thing and i realize its pretty dumb.

so i want to make an alarm which will start beeping if someone passes the ultrasonic sensor and i made that, but now i want to add, that to activate the alarm you need to press a button on an ir remote, please help, thank you in advance, and sorry for my bad english.

dontknow.ino (2.11 KB)

2

hello. i have been trying to find a solution for this thing and i realize its pretty dumb.

so i want to make an alarm which will start beeping if someone passes the ultrasonic sensor and i made that, but now i want to add, that to activate the alarm you need to press a button on an ir remote, please help, thank you in advance, and sorry for my bad english.

dontknow.ino (2.11 KB)

3

Do you want to disable the alarm with ir?
Cause enabling it with ir does not really make sense for me, unless you want it only activated when you are not home?

4

So what is wrong with the code that you did not post properly?

Read the how to use this forum-please read sticky to see how to properly post code and some advice on how to ask a good question.

5

Cross-post

6

I've merged your cross posts @dcipsts.

Cross posting is against the rules of the forum. The reason is that duplicate posts can waste the time of the people trying to help. Someone might spend 15 minutes writing a detailed answer on this thread, without knowing that someone else already did the same in the other thread.

Repeated cross posting will result in a suspension from the forum.

In the future, please take some time to pick the forum section that best suits the topic of your question and then only post once to that forum section. This is basic forum etiquette, as explained in the sticky "How to use this forum - please read." post you will find at the top of every forum section. It contains a lot of other useful information. Please read it.

Thanks in advance for your cooperation.

7 
#include <IRremote.h>
int IR_Recv = 6;                                                  // LED – digital 10                               // ledState to store the state of LED

int led1 = 13;
int led2 = 9;
int led3 = 8;
int led4 = 7;
int buzzerPin = 10;
int trigPin = 11;
int echoPin = 12;

long duration, cm;

IRrecv irrecv(IR_Recv);
decode_results results;




void setup() {
  Serial.begin(9600);
  irrecv.enableIRIn();

  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  pinMode(buzzerPin, OUTPUT);

  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(led4, OUTPUT);

}

void loop() {

  digitalWrite(trigPin, LOW);
  delayMicroseconds(5);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  pinMode(echoPin, INPUT);
  duration = pulseIn(echoPin, HIGH);
  cm = (duration / 2) / 29.1;   // Divide by 29.1 or multiply by 0.0343

  if (irrecv.decode(&results)) {
    long int decCode = results.value;
    Serial.println(results.value);
    //switch case to use the selected remote control button
    switch (results.value) {

      case 16754775:

        while (1) {
          if (cm < 150) {
            digitalWrite(led1, HIGH);
            digitalWrite(led2, HIGH);
            digitalWrite(led3, HIGH);
            digitalWrite(led4, HIGH);

            tone(buzzerPin, 200, 200);
            delay(200);

            digitalWrite(led1, LOW);
            digitalWrite(led2, LOW);
            digitalWrite(led3, LOW);
            digitalWrite(led4, LOW);

            noTone(buzzerPin);
            delay(200);

            digitalWrite(led1, HIGH);
            digitalWrite(led2, HIGH);
            digitalWrite(led3, HIGH);
            digitalWrite(led4, HIGH);

            tone(buzzerPin, 200, 200);
            delay(200);

            digitalWrite(led1, LOW);
            digitalWrite(led2, LOW);
            digitalWrite(led3, LOW);
            digitalWrite(led4, LOW);

            noTone(buzzerPin);
            delay(200);
          }
        }

    }
  }

  irrecv.resume();
}